The normalize function is used to compensate
for any loss from a long cable that may cause
inaccurate measurements.
This function relies on the DUT being directly
connected to either the TG or the RF input. The
position of the long cable in relation to the DUT
(input or output) will affect the P1dB
measurement.
If the cable is at the DUT input, then the line
loss of the cable will reduce the output of the
TG before it is input to the DUT. This
configuration (Location = Prev) can affect the
position of the P1dB point if not normalized.
Likewise if the cable is connected to the output
of the DUT, then the gain of the DUT will be
reduced at the RF input by the line loss of the
cable. In this configuration (Location = Post) the
P1dB point will not be affected.
If a DUT cannot be directly connected to the TG
output or the RG input, try to use the shortest
cable possible to reduce the effect of cable loss.
The line loss from short cables cannot be
measured when using the Normalize function.